package day04;

import java.sql.SQLOutput;
import java.text.BreakIterator;
import java.util.Scanner;

public class PackageTest {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int sum = 0;
        int i = 1;
        while (i <= 100) {
            sum += 1;
            i++;
        }
        System.out.println("sum" + sum);


        int count = 0;
        for (int year = 1900; year <= 2323; year++) {
            if (year % 4 == 0 && year % 400 != 0 || year % 400 == 0) {
                System.out.println(year + "");
                count++;
            }
            if (count % 10 == 0) {
                System.out.println();


            }
        }





























       /*
        System.out.println("请输入年份：");
        int year =  scan.nextInt();
        System.out.println("请输入月份：");
        int month = scan.nextInt();
        int days =0;
        switch (month){

            case 1 :
            case 3:
            case 5:
            case 7:
            case 8:
            case 10:
            case 12:
                days=31;
                break;
            case 4:
            case 6:
            case 9:
            case 11:
                days=30;
                break;
            case 2:
                if (year%4==0 && year%100!=0 || year%400==0){
                    days=29;
                }else{
                    days=28;
                }


        }
        System.out.println(year+"年的"+month+"月共"+days+"天");


        */


    }

}



















       /*
        System.out.println("请输入一个整数");
        int number = scan.nextInt();
        if (number>0){
            System.out.println("+");

        }else if (number<0){
            System.out.println("-");

        }else {
            System.out.println("0");

        }
    }
}



        */

